What alignment angle is influenced by SAI in conjunction with another measurement?

The correct answer focuses on the relationship between steering axis inclination (SAI) and camber. SAI is an angle that affects how the steering axis tilts from the vertical when viewed from the front of the vehicle. This tilting impacts the camber angle, which is the angle of the wheel in relation to the vertical axis when viewed from the front.

When SAI is adjusted, it directly influences the camber angle. A change in SAI will cause the effective camber angle to change as well, which can affect tire wear and vehicle handling. Understanding how these angles interact helps technicians ensure proper wheel alignment, ultimately leading to improved vehicle stability and tire longevity.

Other alignment angles like caster and toe are influenced by different measurements and adjustments. Caster relates to the angle of the steering pivot in the front-to-back direction, while toe describes the angle of the wheels in relation to each other. Thus, camber is the primary angle affected by changes in SAI in this context.